I'm only finding one location for SEIU and it's in New York City.
From their website:
Since its inception in 1940 the 1199 Seiu Federal Credit Union has been serving its members in and around the New York, New York area with exceptional financial products.
Currently led by Kathya Pierre, the 1199 Seiu FCU has grown its membership to over 29,697 with assets of more than $55,178,994. They have 17 full time employees and 2 part time employees with a single main office.
The 1199 Seiu offers its members a full service website that allows for true "Banking From Home" functionality. Users have the ability to apply for loans, get account balance and history reports, transfer money between accounts, and so much more.
Members can also take advantage of a full array of loans including real estate, business and new and used car loans.
They are registered as a associational ( non-religious or non-fraternal) type Credit Union. This means that anyone associated with a particular group that is not religious or fraternal based may be eligible to join.
There are many other credit unions with branch office locations in the nearby area.
http://www.usacreditunions.com/1199-seiu-federal-credit-union-24670
I find the BBM strange.
Also of the 24 directory listing for Maryanna Anderson on Ancestry, 7 have Oregon addresses, one has a 1942 - Tacoma, Washington address, and the remaining are listed in NV, CA, OK, NE, MN, ID, TX, and MI...and they are all 1996 or earlier residence.